Qu, Z.; Wang, Y.; Acikalin, U. U.; Ferber, A. M.; Gouveia, G. J.; Bills, B.; Li, G.; Kline, J.; Yedla, S.; Wang, X. Unsupervised Combinatorial Probabilistic Reasoning: Probabilistic Coin Change Problem. AAAI 2026, 40, 25036-25046.